Which of the following compounds is not aroma | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) To determine aromaticity,we use $H$ückel's rule,which states that a planar,cyclic,fully conjugated system is aromatic if it has $(4n + 2) \pi$ ele

Vedclass · Accepted Answer

Cyclooctatetraene $(C_8H_8)$

Vedclass · Answer

(C) To determine aromaticity,we use $H$ückel's rule,which states that a planar,cyclic,fully conjugated system is aromatic if it has $(4n + 2) \pi$ electrons,where $n$ is an integer $(0, 1, 2, ...)$.$A$. Cyclobutadiene dication $(C_4H_4^{2+})$: It has $2 \pi$ electrons $(n=0)$,is cyclic,planar,and fully conjugated. It is aromatic.$B$. Cyclobutadiene dianion $(C_4H_4^{2-})$: It has $6 \pi$ electrons $(n=1)$,is cyclic,planar,and fully conjugated. It is aromatic.$C$. Cyclooctatetraene $(C_8H_8)$: It has $8 \pi$ electrons ($4n$ system). It is non-planar (tub-shaped) to avoid anti-aromaticity. Therefore,it is non-aromatic.$D$. Biphenyl $(C_{12}H_{10})$: It consists of two benzene rings joined together. It follows $H$ückel's rule and is aromatic.Thus,cyclooctatetraene is not aromatic.

Which of the following compounds is not aromatic?

Similar Questions

Explain why only one mono-substitution product is possible in benzene. Provide examples of its structure and name.

After ozonolysis of benzene (not hydrolysis),the product is

What is the correct order of the rate of nitration for the following compounds?
$A. C_6H_5CH_3, B. C_6H_6, C. C_6D_6, D. C_6T_6, E. C_6H_5Br, F. C_6H_5N^+R_3, G. C_6H_5NMe_2$

Which of the following statements is incorrect?

Number of benzene derivatives of $C_7H_7Cl$ is :

Vedclass Test Series

Exam Paper Generator

Online Exam Module